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A map widget with live positions updates. Provides a controller to manage the map state.

Livemap #

pub package

A map widget with live position updates. Based on Flutter map and Geolocator. Provides a controller api to handle map state changes.

Screenshot

Controller api #

Api for the LiveMapController class

Map controls #

Zoom

zoom: get the current zoom value

zoomIn(): increase the zoom level by 1

zoomOut(): decrease the zoom level by 1

Center

center: get the current center LatLng value

centerOnPosition(Position position ): center the map on a Position

centerOnLiveMarker(): recenter the map on the live position marker

toggleAutoCenter(): toggle the value of autocenter

autoCenter: get the current value of autocenter: used when the position updates are on

Position stream #

togglePositionStreamSubscription(): enable or disable the live position stream

Markers #

addMarker(String name, Marker marker): add a named marker on the map

removeMarker(String name, Marker marker): remove a named marker from the map

On ready callback #

Execute code right after the map is ready:

@override
void initState() {
   liveMapController.onReady.then((_) {
      liveMapController.togglePositionStreamSubscription();
   });
   super.initState();
}

Example #

import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:geolocator/geolocator.dart';
import 'package:livemap/livemap.dart';
import 'package:latlong/latlong.dart';

class LiveMapPage extends StatelessWidget {
LiveMapPage() () {
 mapController = MapController();
 liveMapController = LiveMapController(mapController: mapController);
}

MapController mapController;
LiveMapController liveMapController;

@override
Widget build(BuildContext context) {
 return Scaffold(
     body: LiveMap(
       mapController: mapController,
       liveMapController: liveMapController,
       mapOptions: MapOptions(
         center: LatLng(51.0, 0.0),
         zoom: 13.0,
       ),
       titleLayer: TileLayerOptions(
           urlTemplate: "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
           subdomains: ['a', 'b', 'c']),
     ),
     bottomNavigationBar: LiveMapBottomNavigationBar(
       liveMapController: liveMapController,
     ));
}

@override
void dispose() {
 liveMapController.dispose();
 super.dispose();
}
}

Changefeed #

A changefeed is available: it's a stream with all state changes from the map controller. Ex:

import 'dart:async';

StreamSubscription _changefeed;
int _myzoom;

liveMapController.onReady.then((_) {
    _myzoom = liveMapController.zoom;
    _changefeed = liveMapController.changeFeed.listen((change) {
     if (change.name == "zoom") {
       setState(() {
           _myzoom = change.value;
       });
     }
   });
}

// dispose: _changefeed.cancel();
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Publisher

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A map widget with live positions updates. Provides a controller to manage the map state.

Repository (GitHub)
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License

unknown (LICENSE)

Dependencies

cupertino_icons, flutter, flutter_map, fluttertoast, geopoint, rxdart, slugify2, speech_bubble

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